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Efficiently convert rows to columns in sql server
... yourtable
group by ColumnName, id
order by id
FOR XML PATH(''), TYPE
).value('.', 'NVARCHAR(MAX)')
,1,1,'')
set @query = N'SELECT ' + @cols + N' from
(
select value, ColumnName
fr...
httpd: Could not reliably determine the server's fully qualified domain name, using 127.0.0.1 for Se
... FQDN:
host.server4-245.com
Choose an FQDN and include it both in your /etc/hosts file on both the IPv4 and IPv6 addresses you are using (in your case, localhost or 127.0.0.1), and change your ServerName in your httpd configuration to match.
/etc/hosts:
127.0.0.1 localhost.localdomain localh...
Only initializers, entity members, and entity navigation properties are supported
... the not Paid ones.
public ActionResult Index()
{
var debts = storeDB.Orders
//.Where(o => o.Paid == false)
.OrderByDescending(o => o.DateCreated);
debts = debts.Where(o => o.Paid == false);
return View(debts);
}
That, of course, would mean that you bringing...
廉价共享存储解决方案1-drbd+ha+nfs - 更多技术 - 清泛网 - 专注C/C++及内核技术
...配置IP地址，关闭防火墙，selinux 关闭NetworkManager，修改/etc/hosts,配置YUM (三台机器都需要操作)
2.2.1安装操作系统
省略
2.2.2配置IP地址
省略
由于我是虚拟机环境中测试，share2和share3均是直接克隆而来
克隆之后得到的机...
Deleting a resource using http DELETE
...
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...
Postgres DB Size Command
...g_size_pretty(pg_database_size(t1.datname)) as db_size
from pg_database t1
order by pg_database_size(t1.datname) desc;
If you intend the output to be consumed by a machine instead of a human, you can cut the pg_size_pretty() function.
...
The best way to remove duplicate values from NSMutableArray in Objective-C?
...
Your NSSet approach is the best if you're not worried about the order of the objects, but then again, if you're not worried about the order, then why aren't you storing them in an NSSet to begin with?
I wrote the answer below in 2009; in 2011, Apple added NSOrderedSet to iOS 5 and Mac OS...
Re-ordering columns in pandas dataframe based on column name [duplicate]
... dataframe with over 200 columns. The issue is as they were generated the order is
11 Answers
...
How do I remove leading whitespace in Python?
....lstrip()
'hello world!'
Edit
As balpha pointed out in the comments, in order to remove only spaces from the beginning of the string, lstrip(' ') should be used:
>>> ' hello world with 2 spaces and a tab!'.lstrip(' ')
'\thello world with 2 spaces and a tab!'
Related question:
Trim...
What are attributes in .NET?
...hods/properties.
For example I might declare an Attribute called: DisplayOrder so I can easily control in what order properties should appear in the UI. I could then append it to a class and write some GUI components that extract the attributes and order the UI elements appropriately.
public clas...